IZ1DBY — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IZ1DBY, decoded by SO8OO in southeastern Poland. 52 FT8 messages attributed to this token as transmitter, on 10m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-09-06.
These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.
SO8OO decoded 52 FT8 messages attributed to IZ1DBY as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (100%). Most decodes (88%) fell within the six-hour window 07:00-13:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (67%); the estimated median was -6 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 52 messages
- Active dates
- 7 UTC dates
- Estimated median S/N
- -6 dB
- Estimated 10th-90th percentile
- -12 to +5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 17, strong (≥ -8 dB) 35.
WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.
Attributed messages by UTC hour
Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.
Most frequent locator attributed to IZ1DBY
The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.
- Attributed locator
- JN45 · 52 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,075 km (approx.)
- Last such locator decoded
- 2026-09-06 12:08 UTC
A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.
Observed FT8 exchanges
S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.
| Time UTC | Band | IZ1DBY S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-06 12:03 | 10m | -8 / - | DV4ZAR | - / - | 9 | Partial capture |
| 09-05 19:46 | 10m | -10 / - | CE6YUS | - / - | 5 | Partial capture |
| 08-20 11:26 | 10m | -12 / - | <...> | - / - | 3 | Partial capture |
| 08-07 09:01 | 10m | -1 / - | <...> | - / - | 4 | Partial capture |
| 08-07 08:56 | 10m | -6 / - | VU2KPH | - / - | 2 | Partial capture |
| 07-11 08:28 | 10m | -2 / - | YH1AA | - / - | 5 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 194645 -12 749 CE6YUS IZ1DBY JN45 (x5) 195645 -15 730 YV6BXN IZ1DBY JN45 120330 -11 755 DV4ZAR IZ1DBY JN45 (x9)
Decoder S/N history by band
Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.
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